Dual soaked charcoal canisters

[Willi2ds]

So I've searched and couldn't quite find what I was looking for. I have two canisters, I'm assuming that's because I have dual tanks. The bottom of both of these are saturated with gas, first thought was to remove them both but I really don't want the garage smelling of gas all the time. So my questions are:
Can I just do just one canister and use tees to join the tank vent lines?
Has anyone used one successfully out of a newer vehicle?
Rebuildable? I've heard of cutting apart and using fish filter charcoal and regluing, not sure how durable this would be.
If nothing else, any fairly cheap replacements?
Thanks guys
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